US399302A

US399302A - Valve

Info

Publication number: US399302A
Authority: US
Publication date: 1889-03-12
Anticipated expiration: 1906-03-12

Description

(No Model.) 2 Sheets-Sheet 1.

E. WARE.

VALVE. N0. 399,302. Patented Mar. 12, 1889.

xix.. 'ffl @l y y QUI@ a..

a, mnnnummmm@ MINIMUM@` (No Model.) 2 Sheets-Sheet 2.

E. WARE.

VALVE.

UNITED STATES PATENT, OFFICE.

ELIJAH lVARE, OF OMAHA, NEBRASKA.

VALVE.

SPECIFICATION forming part of Letters Patent No. 399,302, dated March 12, 1889.

Application tiled November l, 1888.

To all whom t may concern:

Be it known that I, ELIJAH XVARE, a citizen ot the United States, residing at Omaha, in the county of Douglas and State of Nebraska, have invented certain new and useful Improvements in Valves, ot' which the following is a specification.

This invention relates to valves; and its ob ject is to provide adevice of this character in which the Huid has a nearly direct passage therethrough, in which all exposed surfaces liable to be cut by steam are obviated, andin which the employment of packing or stuiing in connection with the valve proper or its stem to prevent leakage is entirely dispensed with.

A further object of the invention is to provide a valve possessing advantages in point ot simplicity in construction, ease ot' operation, and general etiiciency.

In the drawings, Figure l is a side elevation of a valve embodying my invention. Fig. 2 is a longitudinal sectional view. Fig. 3 is a transverse sectional view on the line a: Fig.

Fig. l is an end view with the cap removed, illustrating the operation in dotted lines. Fig. 5 is a detail perspective view ot' the valve proper.

Corresponding parts in the igures are denoted by the same letters ot reference.

Referring to the drawings, A designates a cylindric "l casing thebottom a ot' which forms the valve beat. Y ed to be closed by a cap, a, having a circumferential illange, ai, corresponding to and fitting within the edge ot' the casing, said cap being preferably secured to the latter by screws.

From the bottom ot" the casing, at opposite sides, project downwardly and in\\'ar lly two ports, .B l. lhese ports are segmental in (moss-sect ion and the side walls are radial relative to the casing, one of the side walls oli' one port and the opposite side wall of the other port being preferably on a radial line taken through the center of the casing. The inner ends of these ports converge slightly, as shown, and open into thc casing, while at their opposite or lower ends the merge into a single way, h, preferably provided at its outer end with interior screw-threads and with an angular outer su rtace, by which it is adapted to be connected with a pipe.

C designates the valve, which comprises a flat Thetop of the casing is adapt- Serial No. 289,737. (No model.)

circular portion, c, forming the valve proper, which fits closely within the casing against the valve-seat and is provided with openings c c', corresponding to the port-openings. Centrally from the interior surface of the valve and through an aperture in the bottom of the casing between the ports projects a stem, D. The inner portion of this stem is cylindrical in shape, said cylindrical portion projecting some distance beyond the casing, while the outer portion is reduced to a trapezoidal shape. The latter is adapted to be received by a corresponding eye, e, formed in an operating-handle, E, said handle being secured upon the stem by a screw, e. The side of the handle near its point of intersection with the stein is reduced, as shown, to permit sufficient movenient thereof to entirely open or close the valve. A coil-spring, F, is provided around the stein between the casing and handle to rcta-in the valve in contact with its seat when the pressure is not exerted against the same.

The operation and advantages ot myinvention will be readily understood by those skilled in the art to which it appertains. lVhen the handle is at the extreme left side or in en gagement with the port at that side, the valve is entirely closed, and when moved to the right, completely across the space between the ports, (but one-fmirth the (.ircumt'erence of the casing,) the valve is i'ully opened. Then open, the ports and openings in the valve eoincide, leaving no projecting or exposed portions to be cut bysteam when used as a steamvalve. The fluid enters in the direction indicated by the arrows7 Fig. 2, and it will be 0bvious that the great er the pressure of the l'luid upon the valve the latter will be more tirmly held against its seat, and the fluid prevented troln reaching the stem, and thus leakage around said stein is obviatcd.

l claim as `my invention- In avalve, the combination ol aeasinghaving two distinct inclosed ports or passages of segmental contigui-ation whose central integral walls have an opening therein for the entrance ot' the key, and forming stops, a fiat val vc-plate with two segmental openings th ere` in adapted to be mounted in a suitable seat above the inclosed ports or passages, and provided with an integral stem which depends downward into the central opening' between TOO the central integral walls of the said inclosed to cause the Valve-plate to be retained in its 1o ports or passages, a key adapted to enter said seat, substantially as described. central opening and engage with the lower In testimony whereofIafxmysgnature n end of the stem, having reduced sides adapted presence of two Witnesses.

5 to bear against one of the side Walls of each of the inclosed ports when the valve-plate is ELUH W Ahh opened or shut, thereby to cause an exact reg- Vitnesses: stration, and a coiled spring inserted between EUGENE L. XVARE,

the key and the valvecasing around the stem CLEVELAND H. WARE.